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Anonymous Posted on Sep 08, 2017

Studering only when first starting and wont start wet

My 4.3 in my 98 s10 starts fine other than when its been a hard rian ...may start right up but most times it takes heating the engine compartment it was two months last time and it studders when cold like its not getting the spark to match the fuil till you get running temp or if you throttle down on it once or twice ive replaced TPS MAP SENCER CAN I GET SOME HELP PLEASE

1 Answer

Cameron Dickey

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  • Contributor 22 Answers
  • Posted on Oct 28, 2019
Cameron Dickey
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Joined: Aug 30, 2009
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Scan diagnostic codes for more insight and clear them. possible crankshaft position sensor or camshaft position sensor issue. Good luck!

5 Related Answers

Anonymous

  • 64 Answers
  • Posted on Dec 04, 2008

SOURCE: 1989 s10 blazer will not idle

check timing with timing light , sounds like its out of time , and make sure that the timing marks are not off by one tooth

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Anonymous

  • 20 Answers
  • Posted on Mar 05, 2009

SOURCE: 1999 Chevy S10 cranks but wont start

A very common problem on the 99 S10 is a leaky fuel pressure regulator in the intake plenum.What happens is when the truck sits for a few hours or more the regulator leaks all of the fuel in the fuel injection system into the intake air plenum. This does 2 things, 1 it has no fuel pressure when starting and 2 it floods the air intake with raw fuel. Sometimes if you turn the key on wait 3 seconds then turn key off then turn key back on and just turn key to crank starter for a split second and wait 3 seconds.do this 3 times to repressurize fuel system then crank to start(you will hear fuel pump buzz each time you do this.also you may have leaky fuel injectors. Try to crank engine with the gas pedel to the floor. This will tell the computer to stop spraying fuel trhough the injectors and it will start. Joe ASE Master Tech

Woody J Hiatt

  • 306 Answers
  • Posted on May 07, 2009

SOURCE: S10 won't start after it rains. Replaced fuel

Dump the gas in the fuel tank

Anonymous

  • 5 Answers
  • Posted on Jul 21, 2009

SOURCE: My 2001 S10 is hard to start all the time. It

There is not a chock on a Fuel Injected System. I am going to place questions for this on two things possible, Dying battery, Clogged Fuel Filter. Fuel Filters should be changed yearly or 20,000 miles. Its a mazing how dirty Gasoline is these days since there is no Quality regulation.

2000 gmc

  • 56 Answers
  • Posted on Jan 02, 2010

SOURCE: i have a 95 s10 4.3 which starts nd runs fines

spider injection is a common problem with these vehicles, is it consuming gas more than usual, is the oil smelling like gas? The spider is located under the upper intake plenem. There is also a fuel pressure regulator connected to the spider assembly that may be faulty.

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94 s10 4x4 4.3 w eng. after sitting awhile sometimes no start

How does it start after sitting for several days? If she fires right-up I'd say the fuel injectors require replacement. Next ime you try to start it and it won't pull several spark plugs. If they appear wet with gas that would be from leaking fuel injectors. When you try to start it you may breath some new air in to the cylinders causing the gas to evaporate off and 30 minutes later she'll fire up for you. If it is caused from leaking injectors (flooding) Try starting it with the accelerator to to the floor and hold it to the floor. Try starting it for 3-5 seconds and the wait 10-15 seconds but keep your foot to the floor (doing this at start-up fuel flow to the injectors) try this several times. Caution though: As it begins to start remove your foot fom the accelerator to avoid over rev-ing the engine. If this is the cause replace your injectors.
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1999 Chevy S10 cranks but wont start

A very common problem on the 99 S10 is a leaky fuel pressure regulator in the intake plenum.What happens is when the truck sits for a few hours or more the regulator leaks all of the fuel in the fuel injection system into the intake air plenum. This does 2 things, 1 it has no fuel pressure when starting and 2 it floods the air intake with raw fuel. Sometimes if you turn the key on wait 3 seconds then turn key off then turn key back on and just turn key to crank starter for a split second and wait 3 seconds.do this 3 times to repressurize fuel system then crank to start(you will hear fuel pump buzz each time you do this.also you may have leaky fuel injectors. Try to crank engine with the gas pedel to the floor. This will tell the computer to stop spraying fuel trhough the injectors and it will start. Joe ASE Master Tech
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